Draft-equalizer.



A. G. DUNNUCK.

DRAFT EQUALIZER. APPLlCATlON FILED FEB. 1. 1915.

Patented Sept. 21, 1915.

a 110 W} b 8 2- f 2J0 is Q F O 75 2,2

:5 'L'i :53:18 WITNESSES 2 IN VE/VTOR WM fiw ATTORNEY COLUMBIA PLANOGRAPH CO" WASHINGTON. D. C.

ALONZO GREEN DUN'NUCK, 0F STOCKTON, KANSAS.

DRAFT-EQUALIZER.

Lliidjild.

Specification of Letters Patent.

Patented Sept. 21, 1915.

Application filed February 1, 2915. SerialN 0. 5,431.

To all whom it may concern.

Be it known that I, ALoNzo G. DUNNUCK, a citizen of the United States, residing at Stockton, in the county of Books and State of Kansas, have invented certain new and useful Improvements in Draft-Equalizers, of which the following is a specification.

This invention relates to improvements in draft equalizers or eveners, one of the objects being to provide a device of this character having improved means of attachment to the wagon or other vehicle to which it is to be applied.

A further object is to provide an equal izer construction which may be applied to a wagon or agricultural implement, or other vehicle, and the connection thereto be made in a way which will permit the draft force to be exerted at separate points on opposite sides of the tongue and as far back of the wingle-tree or double-tree connections as possible.

The invention further contemplates the use of rigid draft connections between the evener proper and the draft members of the wagon, or other vehicle, and so mounting these rigid draft connections as to accommodate all the movements of the "evener and also act effectively to eliminate to a large degree all tongue shake, besides relieving the tongue of all injurious strain.

In addition to acting as an equalizer or evenefl for differences in pull exerted a like number of draft animals on opposite sides of the tongue or pole, the invention includes provision for adjustment to accommodate an unequal number of draft animals on the opposite sides of the tongue or pole.

lVith these various objects in view, the invention will now be described in connection with a form of construction which has been devised for carrying the invention into practice, reference being had to the accom panying drawing forming a part of this specification, and in which Figure l is a plan view illustrating the device as applied to the hounds or draft members of a wagon, or the'like, certain portions of the parts being broken away; Fig. 2 is a side view of the parts shown in Fig. 1; and Fig. 3 is a view similar to Fig. 1, but showing the device applied to a cultivator frame, only a portion of the latter being illustrated.

the ration of 1-: 2 or vice versa, on the oppo site ends of said bar 8. On the outer ends of the cross-bar 8, by means of bolts l i, are pivotally connected the inner ends of the draft levers 16, each lever comprising a pair of bars embracing between them the corresponding outer end of the cross-bar 8, while the draft attachments 1.8 are received between the outer ends of the lever bars and swivel-1y connected thereto by the bolts 20. These attachments 18 serve to secure to the equalizer either the swingl-e-trees or doubletrees, as required, the drawing showing two sets of double-trees 22 secured to these at-' tachments at the opposite sides of the pole 6. Intermediate its ends each of the draft levers 16 is provided with a series of bolt openings 2% for adjustably accommodating a bolt 26 by means of which the forward ends of the rigid draft links 28 may be pivotallv connected to the draft lever, there being a pair of these draft links 28 used for each of the draft levers, which latter receive the front ends of said links in between the pairs of bars forming each draft lever 16, as illustrated in Fig. 2. The rear ends of each pair of links 28 are pivotally mounted for horizontal movement upon opposite ends of a vertical bolt 30, which bolt is carried in the barrel portion 32 formed on the front edge of a plate 31-, and these plates 84- are mounted for vertical pivotal movement on the opposite, ends of the horizontal queen bolt 4. By this construction and arrangement it will be apparent that the equalizer, whether used as a two-horse, three-horse, or a four-horse evener, ac cording to the particular circumstances of its use, the draft will be equally applied at the opposite sides of the tongue or pole. Moreover, by the use of the draft links 28, draft connection is made at points separate from the pole and at opposite sides thereof that is, to the hounds 2), so that a large proportion of the strain is taken off the pole; and, by use of links which are rigid,

a great deal of shaking or switching of the.

pole or tongue is eliminated. Minor adjustments such as may be necessary to ac,- commodate slight differences between the pull of draft animals on opposite sides of the pole, may be taken care of by adjustment of the bolts 26 to different openings 24. The vertical bolts at opposite ends of the draft links 28 permit the necessary lateral play thereof during the movements of the draft levers 16, while the pivotal mounting of the plates 3 f on the queen bolt 4: provides for the vertical movement of said draft links necessary for accommodating the vertical swinging of the tongue or pole on the queen bolt.

' Fig. 3 illustrates the device as attached to the frame of one type of riding cultivator having the side frame members 86 extending fork-like to the rear from the rear end of the tongue or pole, the forward ends of the plow beams 38 being suspended by the links L0 from the front portions of said members 36. lhe cross-bar 8 of the evener is pivoted on the bolt 10 near the rear end of the pole 6, while the draft links 28 have their pivoted attaching plates 3& mounted on bolts 42 carried by the side members 36 at the rear of the links 40. In this way draft connection is made at points as far back as possible, and by connecting back of the front plow-beam supports the neck load on the draft animals otherwise present, and which is due to the drag of the plow shovels, is relieved to a very material degree.

It will thus be seen that a very simple and effective arrangement has been devised for carrying out the objects of the invention and having the various advantages above stated, and that the apparatus can be constructed quite cheaply and made very strong and durable. 'While the foregoing represents what is now believed to be the preferred form of the invention, the right is reserved to such formal changes and modifications as may fairly fall within the scope of the appended claims.

Claims:

1. In a draft equalizer, the combination of a pair of draft members, a pole having its rear end carried by said members, a bar pivoted intermediate its ends to said pole, draft levers having their inner ends pivoted to the outer ends of said bar, and a rigid draft link extending rearward from each of said levers, each link being pivotally connected at its forward end to one of said levers intermediate the ends of the latter and hav Copies of this patent may be obtained for five cents each, by addressing the Sommissioner of Patents, 1

ing its rear end pivotally connected to one of said draft members.

2. In a draft equalizer, the combination of a pair of draft members, a pole having its rear end carried by said members, a bar pivoted intermediate its ends to said pole, draft levers pivoted to the outer end of said bar, a rigid link extending rearward from each of said levers, each link being adjustably pivoted at its forward end to one of said levers intermediate the ends of the latter, and means providing a horizontal pivotal connection between the rear end of each of said links and one of said draft members respectively. a

3. In a draft equalizer, the combination of a pair of draft members, a pole having its rear end carried between said members on a horizontal axis, draft equalizing means mounted on said pole, and a pair ofrigid links extending rearward on opposite sides of said pole the front ends of said links being pivoted adjustably to said equalizing means, and the rear end of each link being pivotally connected to one of said draft members for both vertical and horizontal movement about the axis of said pole.

4. In a draft equalizer, the combination of a pair of draft members, a pole, a horizontal bolt carried by said members and pivotally supporting the rear end of said pole between said members, draft equalizing means mounted on said pole, a pair of rigid links extending rearward on opposite sides of said pole and having their forward ends pivotally connected to 'said equalizing means, and means for connecting the rear ends of said links to the opposite ends of said bolt and permitting both vertical and horizontal pivotal movement of said links about the axis of said bolt.

5. In a draft equalizer, the combination of a pair of draft members, a pole having its rear end carried between said members on a horizontal axis, a bar pivoted intermediate its ends to said pole, draft levers pivoted to the outer ends of said bar, a rigid draft link extending rearward from each of said levers, each link being pivotally connected at its forward end to one of said levers intermediate the ends of the latter, and means for connecting the rear ends of each of said links to one of said draft members for horizontal pivotal movement and for vertical movement about the axis of said pole.

In testimony whereof I aflix my signature in the presence of two witnesses.

ALONZO GREEN DUNNUCK.

Witnesses: 3

J. R. KnNwon'rnY,

W. H. WADDY.

Washington, D. G. 

